tailieunhanh - TIG Book Episode 6

Tham khảo tài liệu 'tig book episode 6', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Handwheel Figure Cross section of cylinder valve. Cylinders should not be stored or used in a horizontal position. This is because some cylinders contain a liquid which would leak out or be forced out if the cylinder was laid in a flat position. Welding torches and other cables should not be hung on or near cylinders. A torch near a cylinder could cause an arc against the cylinder wall or valve assembly possibly resulting in a weakened cylinder or even a rupture. It is very important to be absolutely sure of yourself before attempting to use any welding equipment. Always think about what you are doing and if you are not sure of the next step to take in any procedure be sure to talk it over first with your welding supervisor. Remember safety is an important factor not only for you but for everyone around you It can be said that common sense is the most important tool a welder can bring to the welding area. Common sense tells us we must respect the basic safety steps which must be taken to avoid both personal injury and injury to a fellow worker. Horseplay or practical jokes have no place in the working area VI. Preparation for Welding Certain basic preparations should be made prior to establishing an arc. Preparations include base metal preparation set up of the machine and its controls. Basic preparation of commonly welded base metals will be covered later in this section. Figure illustrates the front panel of a typical AC DC machine designed for GTAW welding. Keep in mind that not all power sources will have all the features or controls of this machine. And the controls and switches mentioned in the following paragraphs may be found in locations on the power source other than the front panel. The various controls each have a specific function and the operator changes or varies them as the application changes. Power sources have symbols that represent these various controls table 10 in Section XI covers these symbols. Preparing the Power Source Power Switch

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.